Clarain from Tongting (Huaibei, Anhui Province, China) bituminous coal was extracted with CS2 using fractional extraction, and then the extracts were analyzed with GC/MS.

• 摘要以CS2为溶剂对童亭亮煤进行了按时间段分次取样的索氏溶剂萃取，采用GC/MS对各次萃取物进行了定性分析。